File photo.
The distraught, heartbroken pregnant mum laments ...' It was dark outside but the classroom lights were on, I will never forget what I saw that day"

She became suspicious when their daughter got enrolled in a new school and her husband after meeting their child's teacher, made a careless statement, he says "Teachers weren't this beautiful when I

was a kid" She laughed off his statement and never gave thought to it but noticed a strange behaviour in her husband. Read below...

A woman pregnant with her second child discovered her husband of six years was cheating with their daughter's school teacher - and found out in the worst way possible.

The mum, speaking anonymously to
explained how her daughter 'Melody' had just started school and her husband had made a throwaway comment about how "school teachers didn't look like that when I was a kid!"
She thought nothing of it and laughed it off, but her husband began to exhibit increasingly strange behaviour.
"Looking back, I realise Nathan was always very willing to pick Melody up from school, making sure his appointments ended around school pick up time, that sort of thing.

"I didn't think anything of it at the time, I just thought what a wonderful father he was." But then she found an email on her husband's computer from the school teacher, who she names Clarissa.
The message was thanking him for fixing her computer but, his wife noted, there were some oddly personal touches in it - she called him 'Nate' and made a dig about his yellow car.
She confronted Nathan, asking him how she knew about the colour of his car, but he explained it away by saying they had left school at the same time.

A few weeks later, another mum at the school asked if Nathan's IT company had started working there because she had seen him in a classroom with Clarissa sitting at her computer.

"I kept that all to myself, as I'm not a confrontational person, I suffer from depression and anxiety and I can only handle so much 'stuff' at one time," the mum told Kidspot.

After a friend told her not to worry, she put it out of her mind - but couldn't get the feeling of wariness out of her head as Nathan had cheated on her before. But one night, getting home after helping out at the school concert, she realised she had left a bag she needed in the school hall and drove the five minutes back to the building, leaving her daughter with a neighbour.

She got the bag, but something made her walk a different way - past Clarissa's classroom.

"It was dark outside but the classroom light was on - I'll never forget what I saw," she said.

"There was my husband with his arms around my daughter’s teacher, giving her a very passionate kiss. I didn’t know what to do, I froze on the spot and put my hand over my mouth so I wouldn’t scream.

"I just stood there like a total idiot and when he walked out of the classroom that’s how he found me, looking frozen with my hand on my mouth.